Plow



J. FAIRFIELD.

PLOW. APPLICATION FILED MAY16, |9l9.

1,392, 1 33. Patented Sept. 27, 1921.

2 SHEETS-$HEET l.

Invenfor.

' flttorne y J.

PATENT OFFICE.

JENNIE FAIRFIELD, OF DETROIT, MICHIGAN;

PLOW.

Application filed May 16,

- T all whom it may concern:

, Be it known that I, JENNIE FAIRFIELD, a subject of the King of GreatBritain, resid ing at Detroit, in the county ofWayne and State ofMichigan, have invented certain new and useful Improvements in Flows;and I do hereby declare the following to be a full, clear, and exactdescription, of the invention, such as will enable othersskilled in theart to which it appertains to. make and use the same.

This invention relates to plows, and more particularly to a plow of themotor type.

One of the main objects of the invention is to provide a walking plow ofsimple construction and operation, and means for propelling the same,this propelling means being capable of being used for transporting theplow from one field to another. A further object is to provide a plow ofthe character stated, in which the greater part of the weight will bepositioned at the rearward end of the moldboard and landside so as tohold the plow in the ground, suitable gage means being provided forinsuring plowing at a uniform depth. Further objects will appear fromthe detailed description.

In the drawings:

Figure 1 is a side view taken from the moldboard side of a plowconstructed in accordance with my invention.

Fig. 2 is a top plan view of the same.

Fig. 3 is a view similar to Fig. 1 the en gine housing being broken awayand the engine and the parts associated therewith shown in elevation.

Fig. 41 is a detail of the mounting of the drive shaft and theassociated parts.

The plow is provided with a forwardly projecting beam 1 carrying astandard 2 to which are secured the moldboard 3 and the landside 3 andthe share or point 4. A housing 5 is supported by the standard and themoldboard and the landside, this housing being provided with a suitablesupporting frame 5 mounted therein upon which is mounted an internalcombustion engine 7, a. fuel supply tank 8 being supported in the upperportion of the housing and communicating with the engine through acarbureter of suitable type in the well known manner. The supply of fuelto the engine is controlled by a throttle valve rod 9 mounted upon oneof the plow handles 10.

The engine shaft 11 is provided with a pinion 12 which meshes with agear 13 roi Specification of Letters-Patent. Patented Sept. 27, 1921.

1919. I Serial No. 297,473."

tatable on a shaft 14 rockable in hangers 15 depending from frame 5.Gear 13 is provided with a sprocket wheel 14* about which is passedasprocket chain 15 this chain passing about a sprocket wheel Mi securedona shaft 17 rotatable in arms 18 which are secured, at their upperends,on shaft 14. A drive wheel 19 is secured onshaft 17, this wheel beingpositionedat the center o-fthe back of the plow, between the moldboardand the landside, and being provided with a plurality of grippingelements or spikes 20. An adjusting rod 21 is mounted on handle 10 andis provided adjacent its lower end with a worm 22 which meshes with aworm wheel 23 secured on the end of shaft 4 opposite to gear 13. Byturning rod 21, by means of hand wheel 2 1 secured on the upper endthereof, wheel 19 may be adjusted so as to move the moldboard andlandside toward or away from the bottom of the furrow for regulating thedepth of plowing.

Two standards 25, each provided with a series of spaced openings 26, arepositioned at opposite sides of beam 1, these standards receiving spacedsupporting shafts 27 inserted through the beam, these shafts providingmeans whereby the standards may be adjusted vertically and are heldsecurely in adjustment. During the plowing operation, wheels 28 carriedby. the standards at the lower ends thereof, and a gage wheel 29rotatably mounted in a depending fork 29 at the front end of the beam 1,travel upon the ground surface, drive wheel 19 traveling in the furrowso as to propel the plow during operation of the engine. When the plowis to be transported from one field to another, drive wheel 19 is rockedforwardly and downwardly so as to raise the rear portion of the plowabove the ground surface, and standards 25 are lowered so as to bringthe wheels 28* into engagement with the ground surface, these wheels andthe drive wheel acting to support the plow structure an appreciabledistance above the surface of the ground, as in Fig. 1. With the plowthus supported, by rotating wheel 19 by means of engine 7, the plow maybe propelled so as to be readily transported from one place to another.Also, when it is desired to make a relatively shallow furrow, the wheels28 and drive wheel 19 may be utilized for supporting the plow during theplowing operation, the front gage wheel 29 being positioned above theground surface. The adjustment of drive wheel 19 provides means wherebya furrow of the desired depth may be formed, this adjustment of thedrive wheel also serving to tilt the plow slightly for starting a furrowor a the end of the furrow.

In practice, it may be necessary to make slight changes in the detailsof construction and arrangement of the different parts of my inventionto accord with special conditions, and I intend to include all suchvaria tions referred to as fall within the scope of the appended claims,in this application in which a preferred form only of my invention isdisclosed.

What I claim "is:

A tractor having a motor, a shaft, a rotatable member .journaled on. theshaft driven from the motor, a second shaft, a sprocket chain passingover said rotatable member, a sprocket wheel on the second shaft overwhich the chain passes, a frame, supporting means on the frame for themo tor, a supporting wheel structure adjustable from the frame, abearing on the frame for the first shaft, arms rigid with the firstshaft journaling the second shaft, a traction means on the second shaft,a worm wheel on the first shaft, and an adjusting rod having a worm inmesh with the worm wheel.

In testimony whereof I afiix my signature 7 in presence of twowitnesses.

J ENN IE FAIRFIELD.

